'Explosive diarrhoea' outbreak remains a mystery as officials struggle to find sources

"This isn't like detecting a needle in a haystack. It's like detecting a microscopic portion of a needle in a haystack."

— Steven Manderach , Executive

"When we see an outbreak or a cluster or something, we don't have the data we normally expect to go back to use to help us, and this is one of those consequences."

— Jodie Guest , Academic